CVE-2026-74963 | Mozilla Firefox prior 140.14/153.1/154 Cookies cross-domain policy

A vulnerability was found in Mozilla Firefox. It has been declared as problematic. This vulnerability affects unknown code of the component Cookies. The manipulation results in permissive cross-domain policy with untrusted domains.

This vulnerability is cataloged as CVE-2026-74963. The attack may be launched remotely. There is no exploit available.

It is recommended to upgrade the affected component.VulDB Recent EntriesRead More